Homework Help: maths urgent please

Posted by Candice on Monday, October 22, 2012 at 9:28am.

a particle moves in a straight line such that its position x from a fixed point 0 at time 't' is given by
x= 5 + 8sin2t + 6cos2t

1. Find the period and amplitude of the particle.

2. Find the greatest speed of the particle.

Could you please explain the steps on how to get to the answer?
thanks!

maths urgent please - Steve, Monday, October 22, 2012 at 10:22am
As you have surely learned,

a cos kx + b sin kx has
period 2pi/k
amplitude √(a^2+b^2)

plug and chug.

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